What is the purpose of метаspace? How is метаspace managed?

May 29, 2019 ... The first suspect should be off-heap memory. A quick look at the JVM ... But, assuming we know our memory footprint, my intuition (as a non ... Feb 2, 2015 ... Try pmap or /proc/[pid]/smaps to found which jar/lib/stack/file might using much memory..then use gdb to watch content of blocks to help our analysis. Jan 21, 2020 ... If you have ever written a non-trivial java application with jdk8 you have probably heard of Metaspace. This is an example of non-heap memory. Jul 19, 2018 ... And again, NMT does not track memory allocation by non-JVM code. It looks like the main advantage of NMT is the ability to track memory used by ... Dec 9, 2024 ... The JVM Runtime Metrics feature allows you to view heap and non-heap memory, as well as garbage collection activity, for any app that runs inside of the Java ... Feb 18, 2025 ... JVM Memory|Non Heap Memory Usage|Committed Memory. Jboss JVM Memory. False. JVM Memory|Non Heap Memory Usage|Initial Memory. Jboss JVM Memory. nonHeap.max. The maximum size allocation of non-heap memory for the JVM. This memory is used by Java to store loaded classes and other meta-data. By default ... The default maximum size of non-heap memory is 64 MB. This can be changed using –XX:MaxPermSize VM option. Other Memory. Java Virtual Machine uses this space to ... Off heap memory = process memory - (committed head + committed non heap + NUMBER_OF_THREADS * 1024 * 1024) // Xss = 1 MiB = 1024 * 1024 Bytes. Amount of free memory on the Java non-heap Permanent Generation ... Amount of used memory on the Java non-heap Code Cache. freeNonHeapCodeCache. long. Amount ...